Matches in SemOpenAlex for { <https://semopenalex.org/work/W344278509> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W344278509 abstract "The mechanism of the photoreactions of aminomethylene derivatives of 5-X-2-pyrazolin-5-ones (X = S, Se) is retained when the sulfur atom is replaced by selenium. The selone molecule acts both as a generator of singlet oxygen /sup 1/O/sub 2/, and also as a reagent with it. The quantum yield of the breakdown process of a selone, measured in various solvents, is 6-10 times as great as for the corresponding thione, for which there are two causes: (a) rise in the probability of a single-triplet transition on account of the internal heavy-atom effect; (b) increase in the photodecomposition rate constant as a result of the strengthening of the intra-HB. The low T states of the aminomethylene derivatives of the 5-thio- and 5-seleno-2-pyrazolin-5-ones are interpreted as ..pi pi..* states with a considerable charge-transfer component. Under sensitized-photolysis conditions there occur processes associated with the quenching of the S/sub 1/ and T states of the dye by the original enamino selone, the rate of which approaches that of a diffusion-controlled process. The main contribution in the lowering of the rate of the photodecomposition is made by the quenching of the T state of the sensitizer." @default.
- W344278509 created "2016-06-24" @default.
- W344278509 creator A5025129646 @default.
- W344278509 creator A5025375035 @default.
- W344278509 date "1986-04-10" @default.
- W344278509 modified "2023-09-23" @default.
- W344278509 title "Influence of the nature of the hetroatom in the H-chelate ring on the photochemical properties of aminomethylderivatives of 5-X-2-pyrazolin-5-ones" @default.
- W344278509 hasPublicationYear "1986" @default.
- W344278509 type Work @default.
- W344278509 sameAs 344278509 @default.
- W344278509 citedByCount "0" @default.
- W344278509 crossrefType "journal-article" @default.
- W344278509 hasAuthorship W344278509A5025129646 @default.
- W344278509 hasAuthorship W344278509A5025375035 @default.
- W344278509 hasConcept C121332964 @default.
- W344278509 hasConcept C121745418 @default.
- W344278509 hasConcept C134121241 @default.
- W344278509 hasConcept C147789679 @default.
- W344278509 hasConcept C148898269 @default.
- W344278509 hasConcept C171001562 @default.
- W344278509 hasConcept C178790620 @default.
- W344278509 hasConcept C181500209 @default.
- W344278509 hasConcept C184779094 @default.
- W344278509 hasConcept C185592680 @default.
- W344278509 hasConcept C191897082 @default.
- W344278509 hasConcept C192562407 @default.
- W344278509 hasConcept C2777516457 @default.
- W344278509 hasConcept C2780378348 @default.
- W344278509 hasConcept C32909587 @default.
- W344278509 hasConcept C33062035 @default.
- W344278509 hasConcept C40875361 @default.
- W344278509 hasConcept C540031477 @default.
- W344278509 hasConcept C54582936 @default.
- W344278509 hasConcept C62520636 @default.
- W344278509 hasConcept C75473681 @default.
- W344278509 hasConcept C91881484 @default.
- W344278509 hasConcept C93391505 @default.
- W344278509 hasConceptScore W344278509C121332964 @default.
- W344278509 hasConceptScore W344278509C121745418 @default.
- W344278509 hasConceptScore W344278509C134121241 @default.
- W344278509 hasConceptScore W344278509C147789679 @default.
- W344278509 hasConceptScore W344278509C148898269 @default.
- W344278509 hasConceptScore W344278509C171001562 @default.
- W344278509 hasConceptScore W344278509C178790620 @default.
- W344278509 hasConceptScore W344278509C181500209 @default.
- W344278509 hasConceptScore W344278509C184779094 @default.
- W344278509 hasConceptScore W344278509C185592680 @default.
- W344278509 hasConceptScore W344278509C191897082 @default.
- W344278509 hasConceptScore W344278509C192562407 @default.
- W344278509 hasConceptScore W344278509C2777516457 @default.
- W344278509 hasConceptScore W344278509C2780378348 @default.
- W344278509 hasConceptScore W344278509C32909587 @default.
- W344278509 hasConceptScore W344278509C33062035 @default.
- W344278509 hasConceptScore W344278509C40875361 @default.
- W344278509 hasConceptScore W344278509C540031477 @default.
- W344278509 hasConceptScore W344278509C54582936 @default.
- W344278509 hasConceptScore W344278509C62520636 @default.
- W344278509 hasConceptScore W344278509C75473681 @default.
- W344278509 hasConceptScore W344278509C91881484 @default.
- W344278509 hasConceptScore W344278509C93391505 @default.
- W344278509 hasLocation W3442785091 @default.
- W344278509 hasOpenAccess W344278509 @default.
- W344278509 hasPrimaryLocation W3442785091 @default.
- W344278509 hasRelatedWork W1980860529 @default.
- W344278509 hasRelatedWork W1990812338 @default.
- W344278509 hasRelatedWork W2008816192 @default.
- W344278509 hasRelatedWork W2012014547 @default.
- W344278509 hasRelatedWork W2026645064 @default.
- W344278509 hasRelatedWork W2045633529 @default.
- W344278509 hasRelatedWork W2056159654 @default.
- W344278509 hasRelatedWork W2070203242 @default.
- W344278509 hasRelatedWork W2071720381 @default.
- W344278509 hasRelatedWork W2079659634 @default.
- W344278509 hasRelatedWork W2091679305 @default.
- W344278509 hasRelatedWork W2123735233 @default.
- W344278509 hasRelatedWork W2156658044 @default.
- W344278509 hasRelatedWork W2169946456 @default.
- W344278509 hasRelatedWork W2347167073 @default.
- W344278509 hasRelatedWork W2952399771 @default.
- W344278509 hasRelatedWork W2952667250 @default.
- W344278509 hasRelatedWork W2952902635 @default.
- W344278509 hasRelatedWork W3047798080 @default.
- W344278509 hasRelatedWork W49066112 @default.
- W344278509 isParatext "false" @default.
- W344278509 isRetracted "false" @default.
- W344278509 magId "344278509" @default.
- W344278509 workType "article" @default.